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38 lines
948 B
ArmAsm
38 lines
948 B
ArmAsm
#------------------------------------------------------------------------------
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#
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# CpuSleep() for ARMv7
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#
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# ARMv6 versions was:
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# MOV r0,#0
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# MCR p15,0,r0,c7,c0,4 ;Wait for Interrupt instruction
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#
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# But this is a no-op on ARMv7
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#
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# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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#------------------------------------------------------------------------------
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.text
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.p2align 2
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GCC_ASM_EXPORT(CpuSleep)
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#/**
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# Places the CPU in a sleep state until an interrupt is received.
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#
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# Places the CPU in a sleep state until an interrupt is received. If interrupts
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# are disabled prior to calling this function, then the CPU will be placed in a
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# sleep state indefinitely.
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#
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#**/
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#VOID
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#EFIAPI
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#CpuSleep (
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# VOID
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# );
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#
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ASM_PFX(CpuSleep):
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wfi
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bx lr
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